Siemens SICAM CMIC User Manual page 409

Remote terminal units
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FIP
ž Fieldbus interface processor
Firewall
Blockage of a local network or computer against not allowed access from a supraregional network. Func-
tion for the filtering of data from the internet for the protection against invaders and malicious software.
Firmware
Program that is not changeable by the user, that adds a predefined and parameter-settable functionality
to the hardware
FPU
Floating Point Unit
FUD
ž Function diagram
Function diagram
Graphical program for open-/closed-loop control functions according IEC 61131-3
FW
Firmware
G
Global parameter
Parameter that is managed and stored on the system element (central system function) but used also on
other system elements of the automation unit
GPRS
Global Package Radio Service. Data rates up to 171 kbps, usually up to 85 kbps. Package-oriented con-
nection based on TCP/IP and UDP/IP. Billing usually according to data volume. Network expansion area-
wide.
GSM
Global System for Mobile Communication with the services speech, SMS, direct data connections
H
I
IL
ž Instruction list
Instruction list
Line-oriented program for open-/closed-loop control functions acc. to IEC 61131-3
Internal errors
Internal errors are errors which are unambiguously caused by the system element
IOA
Information Object Address
ISDN
Integrated Standard for Digital Network
K
L
LAN
Local Area Network
Load share operation
Redundant communication via 2 interfaces, whereby the messages are partitioned in undisturbed opera-
tion on both interfaces according to particular rules (dependent on load or priority)
Local parameter
Parameter that is managed on the own module (firmware) and is used only there
SICAM RTUs, User Manual SICAM CMIC
DC8-001-2.09, Edition 08.2016
Glossary
409

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